XML 11 R39.htm IDEA: XBRL DOCUMENT v2.4.0.6
Components of Net Periodic Benefit Cost (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Components of Net Periodic Benefit Cost          
Expected contribution to ESOP         $ 1,500,000
Pension Benefits
          
Components of Net Periodic Benefit Cost          
Service cost 1,218,000 775,000 3,654,000 2,325,000  
Interest cost 917,000 824,000 2,750,000 2,472,000  
Expected return on plan assets (815,000) (964,000) (2,444,000) (2,893,000)  
Net amortization of prior service cost 41,000 (4,000) 124,000 (13,000)  
Net amortization of net (gain) loss 567,000 161,000 1,702,000 482,000  
Net Periodic Benefit Cost 1,928,000 792,000 5,786,000 2,373,000  
Expected contribution in next fiscal year         3,800,000
Contributions made by employer     2,900,000    
Post-Retirement Health Benefits
          
Components of Net Periodic Benefit Cost          
Service cost 15,000 27,000 45,000 82,000  
Interest cost 43,000 60,000 130,000 180,000  
Amortization of transition obligation 15,000 15,000 45,000 45,000  
Net Periodic Benefit Cost 73,000 102,000 220,000 307,000  
Expected contribution in next fiscal year         225,000
Contributions made by employer     $ 156,000